Improving crustal structure maps of EuropeImproving crustal structure maps of Europe
Abstract
The global crustal model Crust 5.1 of Mooney et al. (1998) provides a seismic velocity model of the crust in 5deg cells covering the globe, and a recent update, Crust 2.0 (Laske et al. 2000), has improved the resolution to 2 deg cells. Collaborative efforts of European institutions have produced a coverage and quality of data on velocity structure in the European region which is particularly good, and is being continually increased through a wide variety of collaborative seismic profiles. We show that structural maps of Europe with even better resolution than 2deg are now possible. The ESC Subcommission on Crust and Upper Mantle structure has proposed a project aimed at producing updated maps of European crustal seismic structure. This can be done through a cooperative analysis of recent and previous results from a collection of seismic profiles, and will further enhance the resolution of European crustal velocity structure. Maps of Moho depth, and average crustal velocity will be included in the output. Information on shear-wave and upper mantle velocity structures is being gained by many institutions through deep seismic sounding, receiver function and tomographic analysis, and this information should be added to the models produced. An invitation is issued to seismologists with appropriate interests and/or data to contribute to, and participate in, the production of new crustal structure maps of Europe.
- Publication:
-
EGS - AGU - EUG Joint Assembly
- Pub Date:
- April 2003
- Bibcode:
- 2003EAEJA....14574G